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Finding the Fourth Proportional to 336,814.47, 505,211.99 and 87,496.47

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Solution

The fourth proportional to 336,814.47, 505,211.99 and 87,496.47 is: 131,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,814.47 : 505,211.99 = 87,496.47 : x
  2. Step 2: Convert to fraction form
    336,814.47/505,211.99 = 87,496.47/x
  3. Step 3: Cross multiply
    336,814.47x = 505,211.99 × 87,496.47
  4. Step 4: Simplify right side
    336,814.47x = 44,204,265,289.19
  5. Step 5: Solve for x
    x = 44,204,265,289.19/336,814.47
  6. Step 6: Final answer
    x = 131,242.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.